// A simple program that computes the square root of a number
#include <cmath>
//#include <cstdlib> // TODO 5: Remove this line
#include <iostream>
#include <string>

// TODO 11: Include TutorialConfig.h
#include "TutorialConfig.h"

int main(int argc, char *argv[])
{
    if (argc < 2) {
        // TODO 12: Create a print statement using Tutorial_VERSION_MAJOR
        //          and Tutorial_VERSION_MINOR
        // report version
        std::cout << argv[0] << " Version " << Tutorial_VERSION_MAJOR << "."
                  << Tutorial_VERSION_MINOR << std::endl;

        std::cout << "Usage: " << argv[0] << " number" << std::endl;
        return 1;
    }

    // convert input to double
    // TODO 4: Replace atof(argv[1]) with std::stod(argv[1])
    const double inputValue = std::stod(argv[1]);

    // calculate square root
    const double outputValue = sqrt(inputValue);
    std::cout << "The square root of " << inputValue << " is " << outputValue
              << std::endl;
    return 0;
}
